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M16C/64C Group
16.2.3
DMAi Transfer Counter (TCRi) (i = 0 to 3)
DMAi Transfer Counter (i = 0 to 3)
(b15)
(b8)
b7
b0
b7
The value written in the TCRi register is stored in the DMAi transfer counter reload register.
The DMAi transfer counter reload register value is transferred to the DMAi transfer counter in either of
the following cases:
•
The DMAE bit in the DMiCON register is set to 1 (DMA enabled) (single transfer mode, repeat
transfer mode).
•
The DMAi transfer counter underflows (repeat transfer mode).
R01UH0092EJ0110 Rev.1.10
Jul 31, 2012
b0
Symbol
TCR0
TCR1
TCR2
TCR3
Function
Set the number of transfers minus 1.
Address
0189h to 0188h
0199h to 0198h
01A9h to 01A8h
01B9h to 01B8h
Setting Range
0000h to FFFFh
16. DMAC
Reset Value
Undefined
Undefined
Undefined
Undefined
RW
RW
Page 238 of 807
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